After spending the last four games on the bench, Boston Bruins goaltender Tuukka Rask is finally getting his chance for redemption.

Speaking after Boston's practice Saturday morning, Bruins head coach Bruce Cassidy announced that Rask will get the starting nod for Sunday evening's matchup against the Edmonton Oilers at TD Garden.

Rask has struggled this season with a 2.89 goals-against average and a .897 save percentage while backup netminder Anton Khudobin has leapfrogged him on the depth chart -- with Khudobin posting a record of 7-0-2 with a 2.22 GAA and a .932 save percentage.

"It's his turn to go," Cassidy said of Rask's return as starter. "We've gotten terrific goaltending out of Dobby, we'd like to get terrific goaltending out of Tuukka. So everything could be terrific. We'll see. It's his chance tomorrow. That's it."

While this season certainly hasn't gone according to plan so far for Rask, Cassidy noted that building an internal competition at the goaltending position can lead to positive results.

"If you create competition in your lineup for anybody, it makes you better," Cassidy said. "Then you have difficult decisions to make, but then they become easy if you know you can trust both of them, at any position. Internal competition, I think, is good for any team and any sport."

In his career against the Oilers, Rask is 4-2-2 with a 2.80 GAA and an .895 save percentage.

On the injury front, Cassidy announced that forward Brad Marchand will miss his sixth straight game Sunday due to a lingering injury, but added that Wednesday's game against the Lightning is a targeted date for the winger's return.

Less than a month after undergoing surgery to remove part of his colon, Bruins forward David Backes took part in Saturday's practice without a red, non-contact jersey. Despite Backes' recent progression, Cassidy added that the veteran forward will not play Sunday.

Ryan Spooner did not skate Saturday, with Cassidy stating that the team "will see how he is tomorrow" prior to Sunday's matchup.

David Backes also out tomorrow, but a "good sign" that he had first day of contact today, per Cassidy.

Ryan Spooner had a maintenance day. Cassidy says team will "see how he is tommorow."